X-Git-Url: https://wimlib.net/git/?p=wimlib;a=blobdiff_plain;f=src%2Freparse.c;h=2f1b4169e609438d70d245d1e61d2ae4bf7a591d;hp=ff46e9b1061d683469e00b1718d3e871258c70ad;hb=3de1ec66f778edda19865482d685bc6f4e17faf7;hpb=afda46903074c907e31408d599ae74fc0597b368 diff --git a/src/reparse.c b/src/reparse.c index ff46e9b1..2f1b4169 100644 --- a/src/reparse.c +++ b/src/reparse.c @@ -27,12 +27,12 @@ #include "wimlib/alloca.h" #include "wimlib/assert.h" +#include "wimlib/blob_table.h" #include "wimlib/compiler.h" #include "wimlib/endianness.h" #include "wimlib/encoding.h" #include "wimlib/error.h" #include "wimlib/inode.h" -#include "wimlib/lookup_table.h" #include "wimlib/reparse.h" #include "wimlib/resource.h" @@ -157,41 +157,48 @@ make_reparse_buffer(const struct reparse_data * restrict rpdata, * * Note: in the WIM format, the first 8 bytes of the reparse point data buffer * are omitted, presumably because we already know the reparse tag from the - * dentry, and we already know the reparse tag length from the lookup table - * entry resource length. However, we reconstruct the first 8 bytes in the - * buffer returned by this function. + * dentry, and we already know the reparse tag length from the blob length. + * However, we reconstruct the first 8 bytes in the buffer returned by this + * function. */ -int +static int wim_inode_get_reparse_data(const struct wim_inode * restrict inode, u8 * restrict rpbuf, u16 * restrict rpbuflen_ret, - struct wim_lookup_table_entry *lte_override) + struct blob_descriptor *blob_override) { - struct wim_lookup_table_entry *lte; + struct blob_descriptor *blob; int ret; struct reparse_buffer_disk *rpbuf_disk; u16 rpdatalen; wimlib_assert(inode->i_attributes & FILE_ATTRIBUTE_REPARSE_POINT); - if (!lte_override) { - lte = inode_unnamed_lte_resolved(inode); - if (!lte) { + if (blob_override) { + blob = blob_override; + } else { + struct wim_inode_stream *strm; + + strm = inode_get_stream(inode, STREAM_TYPE_REPARSE_POINT, + NO_STREAM_NAME); + if (strm) + blob = stream_blob_resolved(strm); + else + blob = NULL; + if (!blob) { ERROR("Reparse point has no reparse data!"); return WIMLIB_ERR_INVALID_REPARSE_DATA; } - } else { - lte = lte_override; } - if (lte->size > REPARSE_POINT_MAX_SIZE - 8) { + if (blob->size > REPARSE_DATA_MAX_SIZE) { ERROR("Reparse data is too long!"); return WIMLIB_ERR_INVALID_REPARSE_DATA; } - rpdatalen = lte->size; + rpdatalen = blob->size; - /* Read the data from the WIM file */ - ret = read_full_stream_into_buf(lte, rpbuf + 8); + /* Read the reparse data from blob */ + ret = read_full_blob_into_buf(blob, rpbuf + REPARSE_DATA_OFFSET); if (ret) return ret; @@ -318,9 +325,9 @@ parse_substitute_name(const utf16lechar *substitute_name, * @bufsize * Available space in @buf, in bytes. * - * @lte_override - * If not NULL, the stream from which to read the reparse data. Otherwise, - * the reparse data will be read from the unnamed stream of @inode. + * @blob_override + * If not NULL, the blob from which to read the reparse data. Otherwise, + * the reparse data will be read from the reparse point stream of @inode. * * If the entire symbolic link target was placed in the buffer, returns the * number of bytes written. The resulting string is not null-terminated. If @@ -332,7 +339,7 @@ parse_substitute_name(const utf16lechar *substitute_name, ssize_t wim_inode_readlink(const struct wim_inode * restrict inode, char * restrict buf, size_t bufsize, - struct wim_lookup_table_entry *lte_override) + struct blob_descriptor *blob_override) { int ret; struct reparse_buffer_disk rpbuf_disk _aligned_attribute(8); @@ -345,7 +352,7 @@ wim_inode_readlink(const struct wim_inode * restrict inode, wimlib_assert(inode_is_symlink(inode)); if (wim_inode_get_reparse_data(inode, (u8*)&rpbuf_disk, &rpbuflen, - lte_override)) + blob_override)) return -EIO; if (parse_reparse_data((const u8*)&rpbuf_disk, rpbuflen, &rpdata)) @@ -394,10 +401,11 @@ out_free_link_target: return ret; } +/* Given a UNIX-style symbolic link target, create a Windows-style reparse point + * buffer and assign it to the specified inode. */ int -wim_inode_set_symlink(struct wim_inode *inode, - const char *target, - struct wim_lookup_table *lookup_table) +wim_inode_set_symlink(struct wim_inode *inode, const char *target, + struct blob_table *blob_table) { struct reparse_buffer_disk rpbuf_disk _aligned_attribute(8); @@ -492,10 +500,13 @@ wim_inode_set_symlink(struct wim_inode *inode, ret = make_reparse_buffer(&rpdata, (u8*)&rpbuf_disk, &rpbuflen); if (ret == 0) { - ret = inode_set_unnamed_stream(inode, - (u8*)&rpbuf_disk + 8, - rpbuflen - 8, - lookup_table); + if (!inode_add_stream_with_data(inode, + STREAM_TYPE_REPARSE_POINT, + NO_STREAM_NAME, + (u8*)&rpbuf_disk + 8, + rpbuflen - 8, + blob_table)) + ret = WIMLIB_ERR_NOMEM; } FREE(name_utf16le); return ret;